Patricia J. O’Brien was born on April 1, 1935, in Chicago, Illinois to John P. O’Brien and Edna M. Massow. She attended Nicholas Senn High School, graduating in 1953, and then worked at the Illinois Bell Telephone Company as a plant engineering clerk from 1953 to 1960. Concurrently, Pat attended Wright Junior College and graduated in 1960 with an associate’s degree in art. She then attended the University of Illinois, graduating with a bachelor’s of art in anthropology in 1962 and a Ph.D. in the same subject in 1969. Her dissertation was, “A Formal Analysis of Cahokia Ceramics: Powell Tract”. O’Brien was an interim anthropology instructor at Florida Atlantic University in 1966-1967, and became an assistant professor of archeology and sociology at Kansas State University (KSU) in September 1967.
O’Brien worked at KSU for 31 years, retiring as a professor emerita in 1998. She has published seven books and over forty articles, and has presented regularly while at KSU. She has been involved professionally, including in the American Anthropological Association, the American Association for the Advancement of Science, and Sigma Xi. In 1989-1990, O’Brien was an Honor Lecturer at the Mid-American State Universities Association, and the following year she received the Conoco Distinguished Graduate Faculty Award and Sigma Xi deemed her a Distinguished Research Lecturer. She was a Fulbright Senior Lecturer in 1994-1995 at Würzburg, Germany, and was a guest professor in 1996 at Munich, Germany. In 2009, the Plains Anthropological Society recognized her lifetime achievement of Plains-related research, teaching, scholarship, and service by awarding O'Brien with the Distinguished Service Award.

Robin David Stewart Higham (June 20, 1925 – August 27, 2015) was a British-American historian, who specialized in aerospace and military history, and also served as a pilot with the Royal Canadian Air Force during World War II.

Higham was born in London, England to David Higham, a British veteran of the World War I and Margaret Anne Stewart, an American. He grew up in London but had met relatives in Texas and Oklahoma with his mother in 1929 and 1935. Following the outbreak of the Battle of Britain in 1940, Higham's parents sent him to the United States. He attended the Hotchkiss School in Connecticut. He married Barbara Jane Davies (1927-2017) on August 5, 1950. They had four children: Peter, Susan, Martha, and Carol; they had three grandchildren at the time of his death. Higham lived in Manhattan, Kansas for the majority of his life and became an American citizen in 1959. He died in Manhattan, Kansas and is buried there in Sunrise Cemetery with Barbara.

From 1943 to 1947, Higham served as a pilot and flight sergeant in the Royal Canadian Air Force in Europe and Asia (Burma Road). Higham studied at the University of New Hampshire and Harvard University, where he graduated with a bachelor's degree in 1950 cum laude. In 1953, he received his master's degree at Claremont Graduate University in California.

From 1954 to 1957, Higham was an instructor at the University of Massachusetts. He received a PhD in 1957 from Harvard with a dissertation on the development of aviation in Great Britain. For the next six years, until 1963, he was an assistant professor at the University of North Carolina, where he was co-founder of the National Security Seminar of Duke University and University of North Carolina. In 1963, Higham became a professor at Kansas State University. He was granted professor emeritus in 1999.

Though he described himself as a "historical generalist" in a 1998 interview, Higham's primary publications were on the subject of aeronautics, especially military-scientific aspects. He did, however, also write extensively on geopolitics in general.

He was editor of Military Affairs (re-titled later as The Journal of Military History) from 1968 to 1988 and of Aerospace Historian from 1970 to 1988. Higham was also the editor of the Journal of the West beginning in 1976.

In 1977, Higham founded Sunflower University Press, which existed until 2005 and published books on military science and military history.

Higham authored, co-authored, and edited over 38 books and many professional articles.

Higham was a member of many aviation and military history organizations. His honors from these groups included the Social Science Research Council National Security Policy Research Fellowship, 1960–1961. In 1985, he received the first Samuel Eliot Morison Prize for Lifetime Achievement from the Society for Military History. In 1986, Higham received the Victor Gondos Award (now The Edwin H. Simmons Award) for his outstanding service to the Society for Military History.